Gas burner



Juy 24, 1956 w. M. clSsELL GAS BURNER 2 Sheets-Sheet 1 Filed July 24. 1952 JNVENTOR. WMUM M Cfsseu iii-...KM

GAS BURNER William M. Cssell, Louisville, Ky., assignor to W. M. Cssell Manufacturing Co., Incorporated, Louisville, Ky., a corporation of Kentucky Application July 24, 1952, Serial No. '300,750

4 Claims. (Cl. 158-99) This invention relates to gaseous fuel burners, especially of the type employed in laundries and dry-cleaning establishments where the ambient atmosphere is excessively laden with lint.

The main object of the invention is to so construct and equip such a burner that air borne lint and/or other foreign matter flowing to and accumulating at the burner apertures may be removed expeditiously without disassembling the burner construction.

Another object of the invention is to so construct and equip such a burner that the designated foreign matter can be removed without the use of tools or appurtenances that are not a part of the assembly as employed in service.

A further object of the invention is to provide the features adverted to above at such a small additional expense of labor and material that the same may be absorbed by the manufacturer and/ or vendor.

A still further object is to construct the herein outlined improvements so that they will serve and endure without repair or replacement for the normal life of the burner per se.

The advantages of the stated and other incidental objects will be made manifest as the following description is read in connection with the accompanying drawings, in which:

Figure 1 is a plan view of a burner equipment, gas supply line therefor and an intake chamber for a conventional fabric drying itumbler currently used by laundries and dry-cleaning establishments.

Figure 2 is a side elevation of Fig. 1.

Figure 3 is an end view of Fig. 2, observed from the front of the apparatus.

Figure 4 is a horizontal sectional view of the burner member and manifold of the previous iigures.

Figure 5 is a central vertical view, on a somewhat larger scale, in section of one of the burners equipped with the lint removing element at its normal location when the burner is usable.

Figure 6 is a replica of Fig. 5 modified to illustrate when unusable and one stage of the lint removing element displaced in terms of the normal location.

Figures 7 and 8 illustrate the lint removing element removing lint from one of the burners and employed for removing lint from the manifold.

Figure 9 is an enlarged vertical section of a fragment of one of the burners with the wire brush as it passes the apertures to show the ends of the brush projected into one of the apertures.

Figure l0 is similar to Fig. 9, arranged to show the brush in normal or free state lodged in an enlarged recess at the rear end of the burner chamber.

Before explaining in detail the present invention, it is to be understood that the invention is not limited in its application to the specific details of construction and specic arrangement of parts illustrated in the accompanying drawings, other than by the scope of the appended claims, as the invention is capable of other embodiments and of being practiced or carried out in various Ways.

Likewise, it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation, and not intended to limit the scope of the invention claimed herein beyond the requirements of the prior art.

Heretofore in the operation of the gas red fabric drying tumblers in spaces where the ambient atmosphere is abnormally laden with lint the latter enters the gas-air mixing chamber and lodges at and adjacent the burner apertures in ever increasing amounts. Such deposits impede the flow of the combustible fluid to the apertures, interferes with proper combustion thereby causing a white and/ or yellow ame of relatively low heat value and if not removed will eventually interrupt the supply. Also particles of lint enter the apertures, become carbonized and eventually chemically combined with the metal of the burner to a degree that necessitates drilling in order to remove the impediments. Obviously, these eventualities disrupt operation of the dryers and impose expense on the owner. A knowledge of the existing conditions, as outlined in this paragraph and gained by hard experience and observance of the industry, impelled provision of apparatus competent to provide the improvements stated above as objectives of this invention.

Referring now in detail to the accompanying drawings, the reference character 10 therein designates a base or platform consisting of a metallic plate on which is assembled a dryer (not shown) two gas burner pipes or chambers 13, 14 as laterals iixedly attached to manifold 15 equipped with a conventional gas and air mixer 16 and supply pipe 17. Burner apertures are indicated by 19 in the burner chambers including the manifold.

Access openings in the manifold are indicated by numerals 2i), 2l and 22. Each is threaded and closed respectively by cooperating screw type plugs 20F, 21P and 22P so that the correlated taper faces of the respective flanges 20F, 21F and 22F will provide effective gas seals with the abutting taper faces of said access openings when manipulated merely by the integral hand bar B, no tool being required. A conventional valve V and the handbar VB thereof are provided' for controlling the gas supply to the burners. Permanently fixed centrally of plugs 20F, 211) are respectively rods 20K, 21R, at the ends remote to the plugs are wire brushes WB of a size that will sweep eifectively the interior of the burner chamber in which they are lodged thereby removing any and all lint accumulated therein between the brush and the plug while in service. In Figure 5 the brush is illustrated in burner 14 at the end thereof remote to plug 20 and adjacent plug 23. Here is shown lint 24 adjacent and at the apertures 19 as it accumulates in service. Since it is desirable to have the outside diameter of the brush larger than the inside diameter of the burner laterals in order that the prickly wire ends thereof can be utilized to reach inside of the burner apertures it was imperative that provision be made for storing said brush in the burner while the latter is in use. Obviously if such a brush or even one of the lesser diameter were inserted through the openings in the chamber wall for cleaning of the lint after it had accumulated the foreign matter would be forced to and packed at the far end of the chamber and thereby defeat the objects and advantages of the invention.

Attention is specifically directed to the feature of storing the brush in a normal free state at the ends of the burner laterals 13, 14 while in service and the lint along with other disturbing particles are being deposited as explained hereinbefore. In order to preserve the normal tension of the brush wires so as to procure enduring service therefrom and maximum performance, storage recesses 1l, 12 are provided respectively at the closed ends of laterals 13, 14. The enlarged view in Fig. l0 shows the wires radially disposed, each being longer than the diameter of the laterals. These wires are not under pressure by reason of the recess being larger in diameter than that of the brush. As the brush travels from the stored location to the open disposal end of the lateral in the wall of the manifold all of the wires are under pressure and the brush as a Whole becomes cupped (shown in Fig. 9.) by reason of its outside diameter being greater than the inside diameter of the lateral. After the cleaning operation, the brush is inserted in the disposal opening, forced past the apertures, cupped oppositely to that shown in Fig. 9 and then lodged in its respective chamber as the plug that has served as a handle for the brush is firmly screwed into the opening, thus, restoring the burner for service.

A modification of my method of removing the foreign matter from the burners is illustrated in Figs. 7 and 8. In Fig. 8 the lint is shown as it accumulates during removal. In Fig, 1, a vertical section of the manifold with plug 22 removed, the wire brush is shown as it is slid along the interior bottom surface of the manifold, in the direction of the arrow, after entering disposal opening 22 in order to reach the right hand end Where it is forced vertically upward by means of hand bar B of the plug and rod 20K. From this location the brush is employed to sweep the accumulated lint 24M from the manifold by withdrawal in the direction of the associated arrow. Although this invention resulted from a knowledge of. the difficulties encountered in laundries and drycleaning establishments, as referred to above, and the typeof apparatus selected for disclosing a preferred embodiment thereof is particularly adapted for such use it is to be understood that this invention can be practiced in many other forms, even where a section of the wall need not be incorporated in the structure. For instance, the mixer may be removed to provide the access opening for the brush and removal of the foreign matter.

The herein disclosed apparatus for insuring uninterrupted performance of gas fired burners directed to the handling of lint is also useful for removing soot formed in the burner chambers and the apertures thereof caused by a back re or flash-back at the mixers especially when there is anA accumulation of lint in the said chambers. Napthalene that may collect in the apparatus is alsoremovable by the brush.

I claim:

l. A gas burner for a drying tumbler comprising; a cylindrical chamber with closed end walls having gas burner ports in the cylindrical wall thereof, and having an opening in the front wall thereof normally closed by a detachable plug; a gas and air mixer communicating with the chamber and supplying a combustible mixture into the said chamber, through which lint and other undesirable foreign matter may enter and deposit adjacent the said ports; the said chamber also having an annular recess substantially adjacent the rear; and a discal wire brush of larger diameter than said chamber having radially disposed wires normally lodged within the said recess; and a rod connecting the plug and the brush for pulling the brush longitudinally through the chamber and outwardly through the opening to sweep the foreign matter from the ports and outwardly through the said opening.

2. A gas burner for a drying tumbler or the like, cornprising; an elongated cylindrical chamber with closed end 4 walls having gas burner ports in the cylindrical wall thereof, and having an opening in one end wall closed by a detachable plug; a gas and air mixer communicating with the said chamber and supplying a combustible mixture thereto through which undesirable foreign matter may enter and deposit adjacent the said ports; the said chamber also having an annularv recess substantially adjacent the other end thereof; a discal wire brush of larger diameter than said chamber having radially disposed wires with the free ends thereof normally lodged inthe said annular recess and a rod having one end attached tothe radial center of the brush and the other end attached to the said plug, for pulling the brush longitudinally through the chamber and outwardly through the opening in the said one wall of the chamber, therebyfto sweep the foreign material within the chamber outwardly through the said opening.

3. A gas burner for a drying tumbler or the like comprising, an elongated cylindrical chamber with closed end walls havingy gas burner ports in the cylindrical` wall thereof, and having an opening in the front end wall thereof closed by a detachable plug; a gas and air mixer communicating with the said chamber and supplying a combustible mixture thereto through which lint and other foreign matter may enter and deposit Within the said ports; the said chamber also having an annular recess substantially adjacent the rear end thereof; a discalwire brush having radially disposed wires with their free ends normally lodged in the said annular recess; and a rod hav.- ing one end attached to the radial center of the brush and the other end to the said plug, for pulling the brush longitudinally through the chamber and outwardly through the said opening; the said brush having an external diameter greater than the internal diameter of the chamber, whereby the free ends of the radially disposed Wires` of the brush will arch rearwardly and certain of them progressively snap into each burner port as. the brush is moved out of the recess and longitudinally through the chamber, thereby to forcibly dislodge foreign mattericollected in the burner ports. n

4. A gas burner for a drying tumbler or the like comprising; a cylindrical chamber with closed end wallsdiav.-V ing gas burner portsin the cylindrical wall thereof, and having an opening in the front wall thereof normally closed by a detachable plug; a gas and air mixer communicating with the chamber for supplying a combustible mixture into the said chamber; the said. chamber also. having a recess of larger diameter than 'the chamber, and a discal brush for removing foreign substances from the burner ports and chamber; said brush :having wires-diametrically disposed and secured to the remote end of a rod attached to said plug and projected into thechamber; said wires being of a length greater than the diameter of said chamber and less thanthe diameter of said recess.

References Cited in the file yof this patent UNITED STATES PATENTS l 405,105 Crance June 11, 1889 870,980 Marcotte Nov. 12, 1907 1,141,072 Mitchell May 25; 1915 1,451,400 Moe Apr. 10, 1923 2,593,920 Reynolds Apr. 22, 1952 

